@audio/pitch-yin

import yin from '@audio/pitch-yin'

de Cheveigné & Kawahara, 2002. The reference algorithm for monophonic pitch estimation. Most cited, most tested, most robust.

let result = yin(samples, { fs: 44100 })
// → { freq: 440.1, clarity: 0.97 }  or  null

Pass the expected range when known: yin(samples, { fs, minFreq: 60, maxFreq: 520 }). Besides rejecting out-of-range results, minFreq lets YIN use a longer comparison window and improves low-pitch detection near onsets.

Use when: General-purpose monophonic pitch tracking — speech, singing, solo instruments. The most reliable choice when in doubt.
Not for: Polyphonic audio (returns dominant or null), real-time with hard latency budgets (needs full window).
Ref: de Cheveigné & Kawahara, "YIN, a fundamental frequency estimator for speech and music", JASA 2002.
Complexity: $O(N^2/4)$ — two nested passes over half the window.

Part of @audio/pitch — the pitch family umbrella. This README is generated from the umbrella docs.

MIT © audiojs